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一部のUNIXクライアントからCIFS共有にアクセスできなくなりました

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Category:
ontap-9
Specialty:
nas
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環境

  • ONTAP 9
  • Redhat 8.4(RHEL)
  • CIFS / SMB

問題

  • ノードのリブート後、特定のUNIXクライアントからCIFS共有フォルダにアクセスできなくなった
  • 問題はすべてのクライアントに影響するわけではありません
  • 共有内のフォルダの内容のリストは拒否されます。リストされているフォルダ(この場合は「共有」と表示されているフォルダ)にアクセスしようとすると、権限が拒否されます
root@client1~]# df -hT |grep -i cifs
//system.domain.com/Apps/Reports/Shared/NRFB  cifs    175G  35G  141G  20% /reports/NRFB
//system.domain.com/Apps/Reports/Shared/ALL  cifs    175G  35G  141G  20% /reports/ALL
//system.domain.com/Apps/Reports/Shared/RFB  cifs    175G  35G  141G  20% /reports/RFB
[root@client1~]# ls /reports/NRFB
Shared
[root@client1~]# ls /reports/ALL
Shared
[root@client1~]# ls /reports/RFB
Shared
[root@apptup01df Shared]# df -hT |grep -i cifs
//system.domain.com/Apps/Reports/Shared/RFB  cifs    175G  35G  141G  20% /reports/RFB
//system.domain.com/Apps/Reports/Shared/NRFB  cifs    175G  35G  141G  20% /reports/NRFB
//system.domain.com/Apps/Reports/Shared/ALL  cifs    175G  35G  141G  20% /reports/ALL
[root@apptup01df Shared]# ls /reports/RFB/Shared/
ls: reading directory '/reports/RFB/Shared/': Permission denied
  • クライアントは、共有の上位のフォルダをリストしています: 
[root@client1 Shared]# cd ~
[root@client1 ~]# ls -lrth /reports/RFB
total 0
drwxr-xr-x. 2 user01 group01 0 Nov 10  2023 Shared
[root@client1 ~]# ls -lrth /reports/NRFB
total 0
drwxr-xr-x. 2 user01 group01 0 Nov 10  2023 Shared
[root@client1 ~]# ls -lrth /reports/ALL
total 0
drwxr-xr-x. 2 user01 group01 0 Nov 10  2023 Shared
[root@client1 ~]#
  • 共有をアンマウントして再度マウントしても問題はありません。このシナリオでは、正しいファイルがリストされ、アクセスできます:
[root@client1 ~]# df -hT |grep -i cifs
//system.domain.com/Apps/Reports/Shared/RFB  cifs    175G  35G  141G  20% /reports/RFB
//system.domain.com/Apps/Reports/Shared/NRFB  cifs    175G  35G  141G  20% /reports/NRFB
//system.domain.com/Apps/Reports/Shared/ALL  cifs    175G  35G  141G  20% /reports/ALL
[root@client1 ~]# ls -lart /reports/NRFB
total 1
drwxrwxr-x. 5 user01 group01 40 Feb 20  2024 ..
-rwxr-xr-x. 1 user01 group01  0 Mar  4  2025 um.txt
drwxr-xr-x. 2 user01 group01  0 Mar  4  2025 .
[root@client1 ~]# ls -lart /reports/ALL/
total 533961
drwxrwxr-x. 5 user01 group01     40 Feb 20  2024 ..
drwxr-xr-x. 2 user01 group01     0 Dec  5  2024 Archive
-rwxr-xr-x. 1 user01 group01     22 Jun 20 17:35 20250403.zip
-rwxr-xr-x. 1 user01 group01 546771760 Jun 20 17:40 20250227.zip
drwxr-xr-x. 2 user01 group01     0 Jun 20 17:40 .
[root@client1 ~]# ls -lart /reports/NRFB/
total 1
drwxrwxr-x. 5 user01 group01 40 Feb 20  2024 ..
-rwxr-xr-x. 1 user01 group01  0 Mar  4  2025 um.txt
drwxr-xr-x. 2 user01 group01  0 Mar  4  2025 .
[root@client1 ~]# ll /reports/NRFB
total 1
-rwxr-xr-x. 1 user01 group01 0 Mar  4  2025 um.txt
[root@client1 ~]# ll /reports/ALL
total 533961
-rwxr-xr-x. 1 user01 group01 546771760 Jun 20 17:40 20250227.zip
-rwxr-xr-x. 1 user01 group01     22 Jun 20 17:35 20250403.zip
drwxr-xr-x. 2 user01 group01     0 Dec  5  2024 Archive
[root@client1 ~]# ll /reports/NRFB/
total 1
-rwxr-xr-x. 1 user01 group01 0 Mar  4  2025 um.txt
[root@client1 ~]#
  • SECTRACE 
svm1    1 Security Style: NTFS and Access is denied. The
                                NT ACL requested permissions are not
                                granted by the ACE while
                                opening existing file or
                                directory. Access is not
                                granted for: "Read
                                Attributes", "Read"
                                Protocol: cifs
                                Volume: -
                         Share: Reports
                                Path: /Shared
                         Win-User: group01\user01
                                UNIX-User: pcuser
                                Session-ID: 123456789123456789

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